An Optimal PIC Group Decoding for Layered Alamouti Code in Two-User Case

Author

Li, Guoquan ; Xia, Xiang-Gen ; Wu, Yucheng

Author_Institution

Coll. of Commun. Eng., Chongqing Univ., Chongqing, China

fYear

2011

fDate

5-9 Dec. 2011

Firstpage

1

Lastpage

5

Abstract

Partial interference cancellation (PIC) group decoding is an attractive method to reduce the maximum-likelihood (ML) decoding complexity of a layered Alamouti code. However, different grouping schemes for the PIC group decoding may have different performances. In this paper, by fully taking advantage of the Alamouti code structure, we analytically calculate the power gains of the information symbols after the PIC for a grouping scheme. We then propose an optimal grouping scheme for the PIC group decoding by proposing a criterion to choose the grouping schemes adaptively so that the power gains of the information symbols are maximized after the PIC.

Keywords

MIMO communication; group codes; interference suppression; maximum likelihood decoding; layered Alamouti code; maximum-likelihood decoding complexity; optimal PIC group decoding; partial interference cancellation; two-user case; Complexity theory; Decoding; Educational institutions; Interference cancellation; Receivers; Signal to noise ratio; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE

Conference_Location

Houston, TX, USA

ISSN

1930-529X

Print_ISBN

978-1-4244-9266-4

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2011.6134102

Filename

6134102